• 대한전기학회논문지:전기물성ㆍ응용부문C
• /
• 제50권12호
• /
• pp.614-621
• /
• 2001

In this Paper, the ozonizer is fabricated by piling plate-type electrodes up to minimize and reduce install space. Hereby ozone generation characteristics of piled plate-type ozonizer were investigated. Inverse-polarity voltage was generated by H.V neon transformer. And 2 H.V neon transformers were used to supply high voltage each 9 electrodes of plate-type ozonizer. According to the experiments, ozone concentration, generation and yield were proportionally increased tilth increasing the number of electrode. And the maximum increase effects of 246%, 245%, and 33% were obtained when the number of electrode were increased from 3 up to 9.

• Applied Microscopy
• /
• 제15권2호
• /
• pp.80-88
• /
• 1985

The tentacular epithelial cells of Cipangopaludina chinensis were studied with electron microscope. The tentacular epithelium consists of columnar supporting cells, numerous glandular cells and ciliated cells. Glandular cells are classified into three types; type I (mucous metachromasia cell), type II(mucous goblet cell) and type III. Ciliated cells are subdivided into two types; type I ciliated cell has cilia with typical axoneme(9+2), and type II ciliated cell has cilia with unusual axoneme.

• Journal of the Optical Society of Korea
• /
• 제18권3호
• /
• pp.225-229
• /
• 2014

A reflection-type three-dimensional (3D) screen using retroreflector is proposed to improve the visibility of a projected 3D image while keeping its perspective. For the projection-type 2D display, the diffuser is used to represent the 2D scene, overcoming the limitation of the aperture of the projection lens set. If the diffuser is adopted for the projected 3D image, only 2D images sectioned and blurred should be displayed on the screen. The proposed screen can make the 3D image with the aperture limitation visible to be applied to the 3D image projection systems. The feasibility of the proposed screen is verified by experiments.

• 성인간호학회지
• /
• 제19권4호
• /
• pp.644-655
• /
• 2007

Purpose: The purposes of this study were to describe the pattern of type D personality, to compare the life style and quality of life between type D personality and non-type D personality patients, and to investigate the factors influencing quality of life in patients with hypertension. Methods: A cross sectional, descriptive study was used. The participants in this study were 193 outpatients who were diagnosed with hypertension at two university hospitals in urban area, Korea. The data was collected from December, 2006 to January, 2007. Type D personality was measured by the DS-14 scale. Results: The prevalence of type D personality was 83.9%. Patients of type D personality were significantly different in educational status, monthly income, fat intake and exercise, and had a lower overall quality of life than patients of non-type D personality. Under controlled general characteristics and life style factors, multiple linear regression analysis was performed. The most significant factor influencing quality of life in hypertensive patients was type D personality, and this factor explained their quality of life with a variance of 14.8%. Conclusions: Various programs for psychological intervention are required to control for the distressed personality of patients with hypertension. Further studies should be conducted prospectively on a larger patient population.

• 대한전기학회논문지:전기기기및에너지변환시스템부문B
• /
• 제53권12호
• /
• pp.725-731
• /
• 2004

In this study, the three type hybrid interrupters according to the arrangement of the thermal expansion chamber and the puffer cylinder(they are called 'serial type', 'parallel/exchanged type', and 'parallel/separated type' respectively in this work) were designed and manufactured. This paper presents the tested results of the thermal recovery characteristics on the interrupters using a simplified synthetic test facility. The 'serial type' hybrid interrupter which is to obtain more easily the pressure rise for the thermal recovery compared with the others has the best capability in the thermal recovery characteristics. In order to investigate the stress on the operating mechanism, the distortion of the stroke wave in on-load test was examined to the stroke curve in no-load test. The biggest distortion was occurred in the 'parallel/exchanged type' hybrid interrupter. Finally, the small interruption capability on the three type interrupters was estimated by a theoretical form and the 'parallel/separated type' hybrid interrupter has the advantage of the others in the view of structure.

• Clinical and Experimental Pediatrics
• /
• 제45권10호
• /
• pp.1278-1282
• /
• 2002

저자들은 경련 발작후 퇴행성 발달 지연과 무도증 양상의 운동을 보이는 13개월 여아를 두부 자기공명 검사와 소변 유기산 검사를 이용하여 국내 최초로 glutaric aciduria type 1 1례로 진단하였기에 보고하는 바이다.

• 한국의류산업학회지
• /
• 제1권2호
• /
• pp.137-147
• /
• 1999

The purpose of this study was to classify female students' somatotypes, to investigate the relationship between five somatotypes obtained from anthropometric measurements and to examine the relationship between the spinal deformity and somatotypes. The subjects for anthropometric measurements were 844 female middle and high school students. The data were analyzed by cluster analysis, correspondence analysis, Duncan test, and T-test. The results were as follows. Cluster analysis on the factors extracted from directly measured items classified subjects into five types (middle height and a little slim type (39.6%), low height and a little slim type (13.1%), middle height and a little fat type (18.0%), tall and very fat type (7.7%), and very tall and standard type (21.6%). In examining the relationship between the normal people and those of the spinal deformity, the normal showed higher mean value in almost all the items of the girth, the depth, and the length. High school students had more spinal deformity in number than middle school students. The degree of deformity was higher in the right spinal deformity than in the left spinal deformity as the age increased. In terms of the distribution of the spinal deformity classified by the somatotype, Type 1 (middle height and a little slim type) and Type 5 (very tall and standard type) appeared the highest.

• 대한건축학회논문집:구조계
• /
• 제34권5호
• /
• pp.43-50
• /
• 2018

The temperature of underground water generally remains constant regardless of the season. therefore, it is possible to get plenty of energy if we use characteristics of underground water for both cooling and heating. This study evaluates efficiency of real size coaxial and U-tube type complex geothermal system which is combined with underground water well. This study also evaluates relative efficiency/adaptability through comparison with existing geothermal systems(vertical closed loop system, open loop system(SCW)). The heat exchange capacity of complex geothermal system according to temperature difference between circulating water and underground water shows very high significance by increasing proportionally. The temperature change of underground water according to injection energy, shows very high linear growth aspect as injection thermal volume heightens. As a result of evaluation of heat exchange volume between complex geothermal system and comparative geothermal system, coaxial type has 26.1 times greater efficiency than comparative vertical closed type and 2.8 times greater efficiency than SCW type. U-tube type has 26.5 tims greater efficiency than comparative vertical closed type and 2.8 times greater than SCW type as well. This means complex geothermal system has extremely outstanding performance.

• 한국기록관리학회지
• /
• 제16권3호
• /
• pp.69-97
• /
• 2016

대중가요는 오랜 시간 시대의 희노애락을 함께하였다. 또한 시대의 흐름을 함께하며 그 안에서 의미를 가지게 되기도 한다. 대중가요는 당대의 사회상을 반영한다. 그러나 지금까지의 대중가요 아카이브에 대한 연구는 어떤 가수가 있었으며, 어떤 노래가 있었는지, 어떤 가수가 어떤 노래를 불렀는지에 대한 기록을 어떻게 아카이빙할지에 대한 연구가 주를 이루어 왔다. 따라서 기존의 대중가요 아카이브에는 그 노래가 유행하던 시대의 사회상을 충분히 반영하지 못하였다. 이에 본 논문에서는 대중가요와 그 당대의 사회상을 함께 아카이빙하는 방법을 모색하고자 하였으며 그러한 방법으로 '이야기'컬렉션을 제시하고자 한다. 이러한 이야기 안에는 음악에 대한 이야기뿐만 아니라 대중의 삶을 반영하고 그 노래가 유행하던 당대의 사회의 모습을 반영한다. 그리고 그 이야기들은 대중가요사를 넘어 우리가 속해 있는 사회를 더욱 입체적으로 바라보는 것을 가능하게 할 것을 기대해 볼 만하다.

• 한국초전도학회:학술대회논문집
• /
• 한국초전도학회 2006년도 High Temperature Superconductivity Vol.XVI
• /
• pp.74-74
• /
• 2006